JPH06247553A - Transfer loader for plate piece - Google Patents

Abstract

PURPOSE:To reduce a transfer loading processing time by operating respective cylinders simultaneously in addition to the parallel motion by a machine casing where a pair of quadric mechanism are supported by a pivot. CONSTITUTION:A suction board 15 installed on a frame part 16 is pressed to a glass plate 1 so as to suck the glass plate while the sucking state is kept, and a rotatingly moving cylinder 17 is operated during the operation of a lifting cylinder 18 to project and move outward the piston of a cylinder 19 connected to an (a)-rod 7. Whereupon, the (a)-rod 7 turns around the pivot 12, and the (c)-rod 9 of a quadric mechanism is similarly turned, interlocking with the turning movement of the frame part 16 while maintaining a parallelogram whereby a truck 6 is travelled to the pallet 2 side and stopped in a designated position. The glass plate 1 sucked and supported on the frame part 16 is faced in parallel to the inclined leaning surface of the pallet 2 and made to approach a mount interposed in another glass plate until they are pressed to each other by the movement of the truck 6 so that the suction is released. Thus, the glass plate 1 is dropped in a cradle of the pallet 2 and the glass end surface is supported.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer device for a large plate, for example, a plate for mounting a wide area glass plate on a pallet.

[0002]

2. Description of the Related Art As a transfer device for handling a large plate-like member horizontally placed on a conveyor or the like, particularly a glass plate having a large area, with a suction plate, for example, Japanese Patent Publication No. 40-14501. , A chuck frame having a large number of vacuum chucks is lowered from above to adsorb a glass plate, and the chuck frame lifting device is prevented from operating until the inside of the vacuum chuck reaches a certain degree of vacuum. After the operation, the hoisting hoist of a glass plate or a plate-like body is disclosed, in which the chuck frame is rotated while being moved in a required direction to stack the glass plates obliquely, and the publication of Japanese Patent Publication No. 36-4269. Is provided with an arm rod that can be freely extended and contracted vertically downward from a bogie that can move on a horizontal track, and a frame with a suction cup that is rotatable around a horizontal axis that is held horizontally at the lower end of this arm rod. Pivot the body Comprising Te plate member conveying apparatus is disclosed.

[0003]

[Problems to be Solved by the Invention] Japanese Patent Publication No. 40-145
In the publication of No. 01, a large area and a heavy glass plate are transferred to the glass mounting table, so many driving motors are required, and the equipment must be large, heavy and complicated. In addition, because the glass plate cannot be inverted on the feed trochanter, the ceiling traveling body moves to the outside of the feed trochanter and inverts it with a crank, and the transfer time is lowered because it descends in front of the glass mounting table and is loaded. Since it takes a lot of time, there is a drawback that it is necessary to install a plurality of devices in parallel. In the case of the publication of Japanese Patent Publication No. 36-4269, the horizontal plate-like bodies stacked vertically are picked up one by one and conveyed, It is transferred to a leaning device, and is a combination of vertical vertical movement, horizontal lateral movement, and rotary movement, and there is a problem due to the enlargement of the equipment as described above.

[0004]

In order to solve the above problems, that is, to provide a device having a simple transfer time for one cycle and a simple structure, the present invention provides an upper rail installed in the pallet direction. A trolley that can travel back and forth along the trolley is provided, and a plurality of suction plates are arranged at the lower end of the machine frame that hangs down from the trolley via a frame that can move up and down. In a plate-shaped body transfer device for transferring to a pallet by rotation of a frame part, a pair of parallel four-bar mechanisms composed of a, b, c, and d rods are arranged in parallel, and are suspended toward the pallet side. Between the upper end of the b rod and the facing connection of the a rod, a pair of pivots about which the a rod and the b rod in parallel are rotatable are installed, and are connected to the lower ends of the b rod and the hanging d rod. The machine frame provided with the frame part via a c-rod Preferably, pistons of a lifting cylinder and a rotating cylinder, which are arranged in an inverted C shape when viewed from the side of the four-bar mechanism below the carriage, are connected to the b rod and the a rod and suspended. Is a plate-shaped transfer device in which a rotatable hollow shaft is inserted into a pivot shaft fixed to one of the a and b rods, and one of the a and b rods not fixed to the pivot shaft is fixed to the hollow shaft. provide.

[0005]

[Function] The plate-like body supported by the suction plate disposed through the frame portion on the machine frame that is rotated and suspended by the lifting cylinder is moved to the pallet side by the operation of the lifting cylinder and the movement of the linked cart. The machine frame is tilted up while moving in parallel, the rotating cylinder is operated during the movement to invert the plate to the back plate angle of the pallet, and the carriage is positioned on the pallet after the traveling position is stopped. By the machine frame which hangs a pair of four-bar mechanism with the hollow shaft, each cylinder can be operated simultaneously in addition to the conventional parallel movement, and the transfer processing time can be shortened.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A transfer device according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a partially cutaway overall side view illustrating an embodiment of the present invention, FIG. 2 is a partially cutaway perspective view illustrating a pivot shaft and a hollow shaft, and FIG. 3 is a suction plate. It is sectional drawing explaining the attachment of.

A pallet 2 for leaning the glass plate 1 is arranged on one side of the conveyer conveyor 3, and a rail 4 erected above the conveyor and the pallet 2 is provided with a machine frame 5 which is freely movable along the rail. A trolley 6 to be suspended is provided, and the trolley is equipped with a generally known servo motor and a ball screw or the like (not shown) for controlling the movement amount, and the movement of the trolley 6 is adjusted by the thickness of the glass plate 1. You can

The machine frame 5 suspended from the carriage 6 includes a, b, c,
d rods 7, 8, 9 and 10 are connected by a pin joint 11 to form a parallelogram pair of four-node joints, and the b rods 8 and 8 hang down to the pallet 2 side by the pin joints. The upper end of the rod and the rods 7, 7 are connected to each other at the pin joint 11
Instead, a pivot shaft 12 is provided in a shaft-like shape between the opposed shafts, and a rotatable hollow shaft 13 is inserted into the pivot shaft. One of the b rods 8 and 8 or the a rods 7 and 7 is inserted into the hollow shaft. The other rod that is not fixed to the hollow shaft 13 is fixed to the pivot shaft 12.

The d rod and the b rods 8 and 8 are attached to the machine frame 5 which is framed via the c rods 9 and 9 connected to the lower ends of the b rods 8 and 8 and the d rods 10 and 10 which are suspended.
A rectangular frame portion 16 for arranging a plurality of suction plates 15 via a plurality of cylinders 14 is arranged at the lower end of the trolley, and the machine frame is suspended from the rotating cylinders 17 and 17 mounted below the carriage 6. The pistons of the upper cylinders 18 and 18 are connected to the a rods 7 and 7 and the b rods 8 and 8 in an inverted V-shape and suspended, and the rotation and attachment of the lifting cylinder and the carriage 6 are performed. The connection between the piston and the a and b rods 7 and 8 is made by a pin joint so that the piston can freely swing.

An outer cylinder 19 is fixed to the frame portion 16, and an inner cylinder 20 provided with a ventilation hole for suction and release by being fixedly connected to the suction plate 15 is attached to the outer cylinder via a compression spring 21. .
Instead of the hollow shaft 13 provided for simultaneously operating a pair of a rods or b rods in parallel, the other rod is rotatably attached to the pivot shaft 12 fixed to one of the a rod and the b rod, and Although a connecting member (not shown) may be fixed between the pair of rotating cylinders or the operation of the lifting cylinder may be synchronized, instead of the connecting member, a pair of cylinders may be numerically controlled to operate in the same amount. Alternatively, a synchronizing shaft for newly synchronizing the rotation of the pivot with a gear or the like may be arranged parallel to the pivot, and the other rod may be fixed to the synchronizing shaft, but both are complicated. It becomes a structure.

The operation of the present invention will be described below. Rail 4
The upper carriage 6 suspends the machine frame 5 at a predetermined position at a predetermined height, waits for the glass plate 1 conveyed by the conveyor 3, and connects a hose (not shown) connected to the inner cylinder 20 from a vacuum unit (not shown). When the suction plate 15 is kept in a suction state through the glass plate 1 and the glass plate 1 being conveyed is stopped at a predetermined position by a sensor (not shown), the cylinders 14 fixed to the suspended machine frame 5 from the carriage 6 are simultaneously operated. The supporting frame portion 16 is lowered, and the suction plate 15 mounted on the frame portion via a spring 21.
Is pressed against the glass plate 1 while maintaining the suction state to adsorb the glass plate 1, and the frame portion 16 integrated with the adsorption plate 15 that adsorbs the glass plate 1 by the return movement of the cylinder 14 moves up to the glass plate 1. The hoisting cylinder 18
Is operated, the b rod 8 is pulled upward with the pivot shaft 12 or the hollow shaft 13 as an axis, and when the carriage 6 is also moved to the pallet 2 side via the rail 4 in conjunction therewith, the lower ends of the b rod 8 and the d rod 10 are moved. Move horizontally to the pallet 2 side,
That is, since the machine frame 5 of the four-bar mechanism supporting the a rod 8 with the rotating cylinder 17 holds the parallelogram, the glass plate 1 moves in parallel to the pallet 2 side while increasing the distance from the conveyor 3.

When the plate width and plate length are taken into consideration during the operation of the lifting cylinder 18, the rotary cylinder 17 is actuated with a slight delay to cause the piston of the rotary cylinder connected to the rod a to project forward. The a-rod rotates about the hollow shaft 13 or the pivot 12, and the c-rod 9 of the four-bar mechanism also rotates to rotate the frame 16 while maintaining the parallelogram.
That is, when the glass plate 1 supported by the suction disk 15 is turned over and the carriage 6 is moved to the pallet 2 side and stopped at a predetermined position while being turned over, the suction board 15 mounted on the frame portion 16 is used. The suction-supported glass plate 1 faces in parallel with the sloping inclined surface of the pallet 2, and when the carriage 6 moves, the glass plate 1 comes close to the interleaving paper intervening on another glass plate placed on the pallet 2 to a contact pressure state and the suction is released Then, the glass plate 1 being sucked by the suction plate 15 is dropped on the pedestal of the pallet 2 to support the glass end face.

Subsequently, the machine frame 5 is moved to a predetermined position on the conveyor 3 by the backward movement of the carriage 6 and the backward movement of the rotary cylinder 17, and the backward movement of the piston of the hoisting cylinder 18, and the rods are connected. The glass plate 1 is restored to a parallelogram shape with a right angle and the next glass plate 1 conveyed by the conveyor 3 is on standby.

By a parallelogram four-bar mechanism provided with a double shaft of a pivot shaft 12 and a hollow shaft 13, in addition to conventional parallel movement, hoisting and simultaneous shifting by hoisting, and a,
c The rods 7 and 9 can be rotated and reversed, and the carriage 6 is positioned and moved, that is, the glass plate 1 leaning against the pallet 2.
If the amount of movement is controlled by the thickness of, the series of complete automation becomes possible.

The suction plate 15 provided with the spring 21 exerts a contact pressure against the glass plate 1 on the conveyor 3 and a buffering function at the time of loading on the pallet 2, and prevents damage to the glass.

[0016]

EFFECTS OF THE INVENTION The present invention uses a simple machine frame equipped with a double-shaft four-bar mechanism consisting of a pivot and a hollow shaft to allow a glass plate adsorbed and supported to simultaneously move in the shortest path in a combined motion. The transfer time is shortened by drawing, and the loading angle and its height can be adjusted easily, which facilitates automation, and a compact cylinder with less friction loss can be driven by a simple cylinder for accurate repetitive motion. It can be carried out

[Brief description of drawings]

FIG. 1 is a partially cutaway overall side view illustrating an embodiment of the present invention.

FIG. 2 is a perspective view in which a part of a pivot shaft and a hollow shaft are cut away and omitted.

FIG. 3 is a cross-sectional view illustrating attachment of a suction plate.

[Explanation of symbols]

1 ... Glass plate 2 ... Pallet 4 ... Rail 5 ... Machine frame 7 ... a rod 8 ... b rod 9 ... ..C rod 10 ... d rod 12 ... pivot shaft 13 ... hollow shaft 15 ... suction plate 16 ... frame part 17 ... Moving cylinder 18 ... Lifting cylinder

Claims (2)

[Claims] 1. A bogie that can reciprocate along an upper rail erected in the pallet direction is provided, and a plurality of suction cups are provided at the lower end of a machine frame that hangs down from the bogie via a vertically movable frame portion. Then, in the plate-shaped object transfer device for transferring the plate-shaped object sucked on the suction plate to the pallet by the rotation of the frame part,
A pair of parallel four-bar mechanisms composed of a, b, c, and d rods are arranged in parallel, and the parallel a rods and the a rods in parallel are provided between the upper end of the b rods hanging toward the pallet side and the facing connection of the a rods. The b rod has a pair of rotatable pivot shafts and is connected to the lower ends of the b rod and the d rod that hangs down.
The machine frame provided with the frame portion via a rod is arranged in an inverted C-shape when viewed from the side of the four-bar mechanism below the carriage. And a transfer device for a plate-shaped body, which is connected to and suspended from the a rod. 2. A rotatable hollow shaft is inserted into a pivot shaft fixed to one of the a and b rods, and one of the a and b rods not fixed to the pivot shaft is fixed to the hollow shaft. Transfer device for plate-shaped body.